Weirdest thing, it just started grinding today. Grinds when it's spinning, grinds more quietly when it's pumping, and grinds when it's agitating. And it's agitating ME!

I am fairly certain it's the pump, but I have no idea what part # to buy or how to replace the dishonorable part. I've linked a video so you may hear the agitating noise. Ignore the clicking, zippers in the dryer.

Ooof... Thats a pricy pump. Are those pumps rebuildable, or do I have to replace the whole thing?
Complete pump has to be replaced, no individual parts available and pump is hot welded together, (if you tried to take it apart you would never get it back together in a non-leaking condition).